Molecular Neurodegeneration,
Год журнала:
2023,
Номер
18(1)
Опубликована: Июнь 5, 2023
Abstract
Peripheral
inflammation,
defined
as
inflammation
that
occurs
outside
the
central
nervous
system,
is
an
age-related
phenomenon
has
been
identified
a
risk
factor
for
Alzheimer’s
disease.
While
role
of
chronic
peripheral
well
characterized
in
context
dementia
and
other
conditions,
less
known
about
neurologic
contribution
acute
inflammatory
insults
take
place
system.
Herein,
we
define
immune
challenge
form
pathogen
exposure
(e.g.,
viral
infection)
or
tissue
damage
surgery)
causes
large,
yet
time-limited,
response.
We
provide
overview
clinical
translational
research
examined
connection
between
disease,
focusing
on
three
categories
have
received
considerable
attention
recent
years:
infection,
critical
illness,
surgery.
Additionally,
review
neurobiological
mechanisms
which
facilitate
neural
response
to
discuss
potential
blood–brain
barrier
components
neuro-immune
axis
After
highlighting
knowledge
gaps
this
area
research,
propose
roadmap
address
methodological
challenges,
suboptimal
study
design,
paucity
transdisciplinary
efforts
thus
far
limited
our
understanding
how
pathogen-
damage-mediated
may
contribute
Finally,
therapeutic
approaches
designed
promote
resolution
be
used
following
preserve
brain
health
limit
progression
neurodegenerative
pathology.
Frontiers in Immunology,
Год журнала:
2020,
Номер
11
Опубликована: Дек. 10, 2020
The
human
microbiota
has
a
fundamental
role
in
host
physiology
and
pathology.
Gut
microbial
alteration,
also
known
as
dysbiosis,
is
condition
associated
not
only
with
gastrointestinal
disorders
but
diseases
affecting
other
distal
organs.
Recently
it
became
evident
that
the
intestinal
bacteria
can
affect
central
nervous
system
(CNS)
inflammation.
tract
are
communicating
through
bidirectional
network
of
signaling
pathways
called
gut-brain
axis,
which
consists
multiple
connections,
including
vagus
nerve,
immune
system,
bacterial
metabolites
products.
During
these
dysregulated
altered
permeability
blood-brain
barrier
(BBB)
neuroinflammation.
However,
numerous
mechanisms
behind
impact
gut
neuro-development
-pathogenesis
remain
poorly
understood.
There
several
involved
CNS
homeostasis
Among
those,
inflammasome
pathway
been
linked
to
neuroinflammatory
conditions
such
sclerosis,
Alzheimer’s
Parkinson’s
diseases,
anxiety
depressive-like
disorders.
complex
assembles
upon
cell
activation
due
exposure
microbes,
danger
signals,
or
stress
lead
production
pro-inflammatory
cytokines
(interleukin-1β
interleukin-18)
pyroptosis.
Evidences
suggest
there
reciprocal
influence
brain.
how
this
precisely
working
yet
be
discovered.
Herein,
we
discuss
status
knowledge
open
questions
field
focusing
on
function
products
cells
during
healthy
inflammatory
conditions,
neuropsychiatric
In
particular,
focus
innate
mechanism
certain
microbes.
Science,
Год журнала:
2021,
Номер
374(6571), С. 1087 - 1092
Опубликована: Ноя. 25, 2021
The
brain
and
gastrointestinal
tract
are
critical
sensory
organs
responsible
for
detecting,
relaying,
integrating,
responding
to
signals
derived
from
the
internal
external
environment.
At
interface
of
this
function,
immune
cells
in
intestines
consistently
survey
environmental
factors,
eliciting
responses
that
inform
on
physiological
state
body.
Recent
research
reveals
cross-talk
along
gut-brain
axis
regulates
inflammatory
nociception,
responses,
homeostasis.
Here,
we
discuss
molecular
cellular
mechanisms
involved
signaling
inflammation
across
axis.
We
further
highlight
interactions
between
gut
inflammation-associated
diseases.
Physiological Reviews,
Год журнала:
2021,
Номер
102(2), С. 1025 - 1151
Опубликована: Май 5, 2021
The
brain
harbors
a
unique
ability
to,
figuratively
speaking,
shift
its
gears.
During
wakefulness,
the
is
geared
fully
toward
processing
information
and
behaving,
while
homeostatic
functions
predominate
during
sleep.
blood-brain
barrier
establishes
stable
environment
that
optimal
for
neuronal
function,
yet
imposes
physiological
problem;
transcapillary
filtration
forms
extracellular
fluid
in
other
organs
reduced
to
minimum
brain.
Consequently,
depends
on
special
[the
cerebrospinal
(CSF)]
flushed
into
along
perivascular
spaces
created
by
astrocytic
vascular
endfeet.
We
describe
this
pathway,
coined
term
glymphatic
system,
based
dependency
endfeet
their
adluminal
expression
of
aquaporin-4
water
channels
facing
CSF-filled
spaces.
Glymphatic
clearance
potentially
harmful
metabolic
or
protein
waste
products,
such
as
amyloid-β,
primarily
active
sleep,
when
drivers,
cardiac
cycle,
respiration,
slow
vasomotion,
together
efficiently
propel
CSF
inflow
periarterial
brain's
space
contains
an
abundance
proteoglycans
hyaluronan,
which
provide
low-resistance
hydraulic
conduit
rapidly
can
expand
shrink
sleep-wake
cycle.
system
brain,
meets
requisites
maintain
homeostasis
similar
peripheral
organs,
considering
blood-brain-barrier
paths
formation
egress
CSF.
The
meninges
contain
adaptive
immune
cells
that
provide
immunosurveillance
of
the
central
nervous
system
(CNS).
These
are
thought
to
derive
from
systemic
circulation.
Through
single-cell
analyses,
confocal
imaging,
bone
marrow
chimeras,
and
parabiosis
experiments,
we
show
meningeal
B
locally
calvaria,
which
harbors
a
niche
for
hematopoiesis.
reach
calvaria
through
specialized
vascular
connections.
This
calvarial-meningeal
path
cell
development
may
CNS
with
constant
supply
educated
by
antigens.
Conversely,
subset
antigen-experienced
populate
in
aging
mice
blood-borne.
results
identify
private
source
cells,
help
maintain
privilege
within
CNS.
Nature Communications,
Год журнала:
2020,
Номер
11(1)
Опубликована: Сен. 10, 2020
Abstract
Traumatic
brain
injury
(TBI)
is
a
leading
global
cause
of
death
and
disability.
Here
we
demonstrate
in
an
experimental
mouse
model
TBI
that
mild
forms
trauma
severe
deficits
meningeal
lymphatic
drainage
begin
within
hours
last
out
to
at
least
one
month
post-injury.
To
investigate
mechanism
underlying
impaired
function
TBI,
examined
how
increased
intracranial
pressure
(ICP)
influences
the
lymphatics.
We
ICP
can
contribute
dysfunction.
Moreover,
show
pre-existing
dysfunction
before
leads
neuroinflammation
negative
cognitive
outcomes.
Finally,
report
rejuvenation
aged
mice
ameliorate
TBI-induced
gliosis.
These
findings
provide
insights
into
both
causes
consequences
suggest
therapeutics
targeting
system
may
offer
strategies
treat
TBI.
Cell,
Год журнала:
2022,
Номер
186(1), С. 194 - 208.e18
Опубликована: Дек. 28, 2022
The
diversity
and
complex
organization
of
cells
in
the
brain
have
hindered
systematic
characterization
age-related
changes
its
cellular
molecular
architecture,
limiting
our
ability
to
understand
mechanisms
underlying
functional
decline
during
aging.
Here,
we
generated
a
high-resolution
cell
atlas
aging
within
frontal
cortex
striatum
using
spatially
resolved
single-cell
transcriptomics
quantified
gene
expression
spatial
major
types
these
regions
over
mouse
lifespan.
We
observed
substantially
more
pronounced
state,
expression,
non-neuronal
neurons.
Our
data
revealed
signatures
glial
immune
activation
aging,
particularly
enriched
subcortical
white
matter,
identified
both
similarities
notable
differences
cell-activation
patterns
induced
by
systemic
inflammatory
challenge.
These
results
provide
critical
insights
into
inflammation
brain.